Camera optical lens

ABSTRACT

The present disclosure relates to the field of optical lenses and provides a camera optical lens. The camera optical lens includes, from an object side to an image side: a first lens; a second lens having a positive refractive power; a third lens having a positive refractive power; a fourth lens; a fifth lens; and a sixth lens. The camera optical lens satisfies following conditions: 3.00≤f1/f2≤6.00; and −7.00≤(R1+R2)/(R1−R2)≤−1.00. The camera optical lens can achieve a high imaging performance while obtaining a low TTL.

TECHNICAL FIELD

The present disclosure relates to the field of optical lens, and moreparticularly, to a camera optical lens suitable for handheld terminaldevices, such as smart phones or digital cameras, and imaging devices,such as monitors or PC lenses.

BACKGROUND

With the emergence of smart phones in recent years, the demand forminiature camera lens is increasing day by day, but in general thephotosensitive devices of camera lens are nothing more than ChargeCoupled Device (CCD) or Complementary Metal-Oxide Semiconductor Sensor(CMOS sensor), and as the progress of the semiconductor manufacturingtechnology makes the pixel size of the photosensitive devices becomesmaller, plus the current development trend of electronic productstowards better functions and thinner and smaller dimensions, miniaturecamera lenses with good imaging quality therefore have become amainstream in the market. In order to obtain better imaging quality, thelens that is traditionally equipped in mobile phone cameras adopts athree-piece or four-piece lens structure. Also, with the development oftechnology and the increase of the diverse demands of users, and as thepixel area of photosensitive devices is becoming smaller and smaller andthe requirement of the system on the imaging quality is improvingconstantly, the five-piece, six-piece and seven-piece lens structuresgradually appear in lens designs. There is an urgent need forultra-thin, wide-angle camera lenses with good optical characteristicsand fully corrected chromatic aberration.

BRIEF DESCRIPTION OF DRAWINGS

Many aspects of the exemplary embodiment can be better understood withreference to the following drawings. The components in the drawings arenot necessarily drawn to scale, the emphasis instead being placed uponclearly illustrating the principles of the present disclosure. Moreover,in the drawings, like reference numerals designate corresponding partsthroughout the several views.

FIG. 1 is a schematic diagram of a structure of a camera optical lens inaccordance with Embodiment 1 of the present disclosure;

FIG. 2 is a schematic diagram of a longitudinal aberration of the cameraoptical lens shown in FIG. 1;

FIG. 3 is a schematic diagram of a lateral color of the camera opticallens shown in FIG. 1;

FIG. 4 is a schematic diagram of a field curvature and a distortion ofthe camera optical lens shown in FIG. 1;

FIG. 5 is a schematic diagram of a structure of a camera optical lens inaccordance with Embodiment 2 of the present disclosure;

FIG. 6 is a schematic diagram of a longitudinal aberration of the cameraoptical lens shown in FIG. 5;

FIG. 7 is a schematic diagram of a lateral color of the camera opticallens shown in FIG. 5;

FIG. 8 is a schematic diagram of a field curvature and a distortion ofthe camera optical lens shown in FIG. 5;

FIG. 9 is a schematic diagram of a structure of a camera optical lens inaccordance with Embodiment 3 of the present disclosure;

FIG. 10 is a schematic diagram of a longitudinal aberration of thecamera optical lens shown in FIG. 9;

FIG. 11 is a schematic diagram of a lateral color of the camera opticallens shown in FIG. 9; and

FIG. 12 is a schematic diagram of a field curvature and a distortion ofthe camera optical lens shown in FIG. 9.

DESCRIPTION OF EMBODIMENTS

The present disclosure will hereinafter be described in detail withreference to several exemplary embodiments. To make the technicalproblems to be solved, technical solutions and beneficial effects of thepresent disclosure more apparent, the present disclosure is described infurther detail together with the figure and the embodiments. It shouldbe understood the specific embodiments described hereby is only toexplain the disclosure, not intended to limit the disclosure.

Embodiment 1

Referring to FIG. 1, the present disclosure provides a camera opticallens 10. FIG. 1 shows the camera optical lens 10 according to Embodiment1 of the present disclosure. The camera optical lens 10 includes 6lenses. Specifically, the camera optical lens 10 includes, from anobject side to an image side, an aperture S1, a first lens L1, a secondlens L2, a third lens L3, a fourth lens L4, a fifth lens L5, and a sixthlens L6. An optical element such as an optical filter GF can be arrangedbetween the sixth lens L6 and an image plane Si.

The first lens L1 is made of a plastic material, the second lens L2 ismade of a plastic material, the third lens L3 is made of a plasticmaterial, the fourth lens L4 is made of a plastic material, the fifthlens L5 is made of a plastic material, and the sixth lens L6 is made ofa plastic material.

The second lens L2 has a positive refractive power, and the third lensL3 has a positive refractive power.

Herein, a focal length of the first lens L1 is defined as f1 and a focallength of the second lens L2 is defined as f2. The camera optical lens10 should satisfy a condition of 3.00≤f2/f2≤6.00. The appropriatedistribution of the refractive power leads to a better imaging qualityand a lower sensitivity.

A curvature radius of the object side surface of the first lens L1 isdefined as R1, and a curvature radius of the image side surface of thefirst lens L1 is defined as R2. The camera optical lens 10 furthersatisfies a condition of −7.00≤(R1+R2)/(R1−R2)≤−1.00. This canreasonably control a shape of the first lens L1 in such a manner thatthe first lens L1 can effectively correct a spherical aberration of thecamera optical lens.

A total optical length from an object side surface of the first lens L1to an image plane of the camera optical lens 10 along an optic axis isdefined as TTL. When the focal length of the first lens, the focallength of the second lens, the curvature radius of the object sidesurface of the first lens and the curvature radius of the image sidesurface of the first lens satisfy the above conditions, the cameraoptical lens will have the advantage of high performance and satisfy thedesign requirement of a low TTL.

In this embodiment, the object side surface of the first lens L1 isconvex in a paraxial region, an image side surface of the first lens L1is concave in the paraxial region, and the first lens L1 has a positiverefractive power.

A focal length of the camera optical lens 10 is defined as f, and thefocal length of the first lens L1 is f1. The camera optical lens 10further satisfies a condition of 1.81≤f1/f≤14.90, which specifies aratio of the focal length f1 of the first lens L1 and the focal length fof the camera optical lens 10. If the lower limit of the specified valueis exceeded, although it would facilitate development of ultra-thinlenses, the positive refractive power of the first lens L1 will be toostrong, and thus it is difficult to correct the problem like anaberration and it is also unfavorable for development of wide-anglelenses. On the contrary, if the upper limit of the specified value isexceeded, the positive refractive power of the first lens L1 wouldbecome too weak, and it is then difficult to develop ultra-thin lenses.Preferably, 2.90≤f1/f≤11.92.

An on-axis thickness of the first lens L1 is defined as d1. The cameraoptical lens 10 further satisfies a condition of 0.03≤d1/TTL≤0.09. Thisfacilitates achieving ultra-thin lenses. Preferably, 0.04≤d1/TTL≤0.07.

In this embodiment, an object side surface of the second lens L2 isconvex in the paraxial region, and an image side surface of the secondlens L2 is concave in the paraxial region.

The focal length of the camera optical lens 10 is defined as f, and afocal length of the second lens L2 is f2. The camera optical lens 10further satisfies a condition of 0.60≤f2/f≤2.49. By controlling thepositive refractive power of the second lens L2 within the reasonablerange, correction of the aberration of the optical system can befacilitated. Preferably, 0.96≤f2/f≤1.99.

A curvature radius of the object side surface of the second lens L2 isdefined as R3, and a curvature radius of the image side surface of thesecond lens L2 is defined as R4. The camera optical lens 10 furthersatisfies a condition of −7.26≤(R3+R4)/(R3−R4)≤−0.94. This canreasonably control a shape of the second lens L2. Out of this range, adevelopment towards ultra-thin and wide-angle lenses would make itdifficult to correct the problem of the aberration. Preferably,−4.53≤(R3+R4)/(R3−R4)≤−1.17.

An on-axis thickness of the second lens L2 is defined as d3. The cameraoptical lens 10 further satisfies a condition of 0.04≤d3/TTL≤0.14. Thisfacilitates achieving ultra-thin lenses. Preferably, 0.07≤d3/TTL≤0.12.

In this embodiment, an object side surface of the third lens L3 isconcave in the paraxial region, an image side surface of the third lensL3 is convex in the paraxial region, and the third lens L3 has apositive refractive power.

The focal length of the camera optical lens 10 is defined as f, and afocal length of the third lens L3 is f3. The camera optical lens 10further satisfies a condition of 0.36≤f3/f≤1.44. The appropriatedistribution of the refractive power leads to a better imaging qualityand a lower sensitivity. Preferably, 0.57≤f3/f≤1.15.

A curvature radius of the object side surface of the third lens L3 isdefined as R5, and a curvature radius of the image side surface of thethird lens L3 is defined as R6. The camera optical lens 10 furthersatisfies a condition of 0.65≤(R5+R6)/(R5−R6)≤3.33, which specifies ashape of the third lens L3. Out of this range, a development towardsultra-thin and wide-angle lenses would make it difficult to correct theproblem like an off-axis aberration. Preferably,1.04≤(R5+R6)/(R5−R6)≤2.67.

An on-axis thickness of the third lens L3 is defined as d5. The cameraoptical lens 10 further satisfies a condition of 0.04≤d5/TTL≤0.21. Thisfacilitates achieving ultra-thin lenses. Preferably, 0.07≤d5/TTL≤0.17.

In this embodiment, an object side surface of the fourth lens L4 isconcave in the paraxial region, an image side surface of the fourth lensL4 is convex in the paraxial region, and the fourth lens L4 has anegative refractive power.

The focal length of the camera optical lens 10 is defined as f, and afocal length of the fourth lens L4 is f4. The camera optical lens 10further satisfies a condition of −1.24≤f4/f≤−0.32. The appropriatedistribution of the refractive power leads to a better imaging qualityand a lower sensitivity. Preferably, −0.78≤f4/f≤−0.40.

A curvature radius of the object side surface of the fourth lens L4 isdefined as R7, and a curvature radius of the image side surface of thefourth lens L4 is defined as R8. The camera optical lens 10 furthersatisfies a condition of −2.95≤(R7+R8)/(R7−R8)≤−0.78, which specifies ashape of the fourth lens L4. Out of this range, a development towardsultra-thin and wide-angle lenses would make it difficult to correct theproblem like an off-axis aberration. Preferably,−1.84≤(R7+R8)/(R7−R8)≤−0.98.

An on-axis thickness of the fourth lens L4 is defined as d7. The cameraoptical lens 10 further satisfies a condition of 0.03≤d7/TTL≤0.13. Thisfacilitates achieving ultra-thin lenses. Preferably, 0.05≤d7/TTL≤0.11.

In this embodiment, an object side surface of the fifth lens L5 isconvex in the paraxial region, an image side surface of the fifth lensL5 is convex in the paraxial region, and the fifth lens L5 has apositive refractive power.

The focal length of the camera optical lens 10 is defined as f, and afocal length of the fifth lens L5 is f5. The camera optical lens 10further satisfies a condition of 0.37≤f5/f≤1.21. This can effectivelymake a light angle of the camera lens gentle and reduce the tolerancesensitivity. Preferably, 0.59≤f5/f≤0.96.

A curvature radius of the object side surface of the fifth lens L5 isdefined as R9, and a curvature radius of the image side surface of thefifth lens L5 is defined as R10. The camera optical lens 10 furthersatisfies a condition of 0.25≤(R9+R10)/(R9−R10)≤1.41, which specifies ashape of the fifth lens L5. Out of this range, a development towardsultra-thin and wide-angle lenses would make it difficult to correct theproblem like an off-axis aberration. Preferably,0.40≤(R9+R10)/(R9−R10)≤1.13.

A thickness on-axis of the fifth lens L5 is defined as d9. The cameraoptical lens 10 further satisfies a condition of 0.06≤d9/TTL≤0.22. Thisfacilitates achieving ultra-thin lenses. Preferably, 0.09≤d9/TTL≤0.18.

In this embodiment, an image side surface of the sixth lens L6 isconcave in the paraxial region, and the sixth lens L6 has a negativerefractive power.

The focal length of the camera optical lens 10 is defined as f, and afocal length of the sixth lens L6 is f6. The camera optical lens 10further satisfies a condition of −1.65≤f6/f≤−0.49. The appropriatedistribution of the refractive power leads to a better imaging qualityand a lower sensitivity. Preferably, −1.03≤f6/f≤−0.61.

A curvature radius of an object side surface of the sixth lens L6 isdefined as R11, and a curvature radius of the image side surface of thesixth lens L6 is defined as R12. The camera optical lens 10 furthersatisfies a condition of 0.39≤(R11+R12)/(R11−R12)≤2.70, which specifiesa shape of the sixth lens L6. Out of this range, a development towardsultra-thin and wide-angle lenses would make it difficult to correct theproblem like an off-axis aberration. Preferably,0.62≤(R11+R12)/(R11−R12)≤2.16.

A thickness on-axis of the sixth lens L6 is defined as d11. The cameraoptical lens 10 further satisfies a condition of 0.02≤d11/TTL≤0.10. Thisfacilitates achieving ultra-thin lenses. Preferably, 0.04≤d11/TTL≤0.08.

In this embodiment, the focal length of the camera optical lens 10 isdefined as f, and a combined focal length of the first lens L1 and thesecond lens L2 is f12. The camera optical lens 10 further satisfies acondition of 0.47≤f12/f≤2.13. This can eliminate the aberration anddistortion of the camera optical lens while suppressing a back focallength of the camera optical lens, thereby maintaining miniaturizationof the camera lens system. Preferably, 0.75≤f12/f≤1.70.

In this embodiment, the total optical length TTL of the camera opticallens 10 is smaller than or equal to 5.21 mm, which is beneficial forachieving ultra-thin lenses. Preferably, the total optical length TTL ofthe camera optical lens 10 is smaller than or equal to 4.97 mm.

In this embodiment, the camera optical lens 10 has a large F number,which is smaller than or equal to 2.47. The camera optical lens 10 has abetter imaging performance. Preferably, the F number of the cameraoptical lens 10 is smaller than or equal to 2.42.

With such design, the total optical length TTL of the camera opticallens 10 can be made as short as possible, and thus the miniaturizationcharacteristics can be maintained.

In the following, examples will be used to describe the camera opticallens 10 of the present disclosure. The symbols recorded in each examplewill be described as follows. The focal length, on-axis distance,curvature radius, on-axis thickness, inflexion point position, andarrest point position are all in units of mm.

TTL: Optical length (the total optical length from the object sidesurface of the first lens to the image plane of the camera optical lensalong the optic axis) in mm.

Preferably, inflexion points and/or arrest points can be arranged on theobject side surface and/or image side surface of the lens, so as tosatisfy the demand for the high quality imaging. The description belowcan be referred to for specific implementations.

The design information of the camera optical lens 10 in Embodiment 1 ofthe present disclosure is shown in Tables 1 and 2.

TABLE 1 R d nd νd S1 ∞  d0 = −0.050 R1 19.129  d1 = 0.250 nd1 1.5439 ν155.95 R2 1947.108  d2 = 0.030 R3 1.565  d3 = 0.410 nd2 1.5439 ν2 55.95R4 2.757  d4 = 0.108 R5 −9.587  d5 = 0.668 nd3 1.5439 ν3 55.95 R6 −1.245 d6 = 0.145 R7 −1.292  d7 = 0.298 nd4 1.6713 ν4 19.24 R8 −10.510  d8 =0.130 R9 11.832  d9 = 0.656 nd5 1.6613 ν5 20.37 R10 −2.202 d10 = 0.525R11 4.212 d11 = 0.302 nd6 1.6150 ν6 25.92 R12 1.201 d12 = 0.256 R13 ∞d13 = 0.110 ndg 1.5168 νg 64.17 R14 ∞ d14 = 0.850

In the table, meanings of various symbols will be described as follows.

S1: aperture;

R: curvature radius of an optical surface, a central curvature radiusfor a lens;

R1: curvature radius of the object side surface of the first lens L1;

R2: curvature radius of the image side surface of the first lens L1;

R3: curvature radius of the object side surface of the second lens L2;

R4: curvature radius of the image side surface of the second lens L2;

R5: curvature radius of the object side surface of the third lens L3;

R6: curvature radius of the image side surface of the third lens L3;

R7: curvature radius of the object side surface of the fourth lens L4;

R8: curvature radius of the image side surface of the fourth lens L4;

R9: curvature radius of the object side surface of the fifth lens L5;

R10: curvature radius of the image side surface of the fifth lens L5;

R11: curvature radius of the object side surface of the sixth lens L6;

R12: curvature radius of the image side surface of the sixth lens L6;

R13: curvature radius of an object side surface of the optical filterGF;

R14: curvature radius of an image side surface of the optical filter GF;

d: on-axis thickness of a lens and an on-axis distance between lenses;

d0: on-axis distance from the aperture S1 to the object side surface ofthe first lens L1;

d1: on-axis thickness of the first lens L1;

d2: on-axis distance from the image side surface of the first lens L1 tothe object side surface of the second lens L2;

d3: on-axis thickness of the second lens L2;

d4: on-axis distance from the image side surface of the second lens L2to the object side surface of the third lens L3;

d5: on-axis thickness of the third lens L3;

d6: on-axis distance from the image side surface of the third lens L3 tothe object side surface of the fourth lens L4;

d7: on-axis thickness of the fourth lens L4;

d8: on-axis distance from the image side surface of the fourth lens L4to the object side surface of the fifth lens L5;

d9: on-axis thickness of the fifth lens L5;

d10: on-axis distance from the image side surface of the fifth lens L5to the object side surface of the sixth lens L6;

d11: on-axis thickness of the sixth lens L6;

d12: on-axis distance from the image side surface of the sixth lens L6to the object side surface of the optical filter GF;

d13: on-axis thickness of the optical filter GF;

d14: on-axis distance from the image side surface of the optical filterGF to the image plane;

nd: refractive index of d line;

nd1: refractive index of d line of the first lens L1;

nd2: refractive index of d line of the second lens L2;

nd3: refractive index of d line of the third lens L3;

nd4: refractive index of d line of the fourth lens L4;

nd5: refractive index of d line of the fifth lens L5;

nd6: refractive index of d line of the sixth lens L6;

ndg: refractive index of d line of the optical filter GF;

vd: abbe number;

v1: abbe number of the first lens L1;

v2: abbe number of the second lens L2;

v3: abbe number of the third lens L3;

v4: abbe number of the fourth lens L4;

v5: abbe number of the fifth lens L5;

v6: abbe number of the sixth lens L6;

vg: abbe number of the optical filter GF.

Table 2 shows aspherical surface data of the camera optical lens 10 inEmbodiment 1 of the present disclosure.

TABLE 2 Conic coefficient Aspherical surface coefficients k A4 A6 A8 A10R1 −4.0000E+00   1.7958E−01   7.2080E−02 −9.7972E−02 −1.1831E−01 R2  0.0000E+00   2.1270E−01   2.3340E−01 −3.9838E−01   7.3417E−01 R3  0.0000E+00 −1.5691E−01   7.9583E−02 −2.0797E−01 −5.4598E−02 R4  0.0000E+00 −4.0757E−01   7.9836E−02 −1.2195E+00   2.4223E+00 R5  0.0000E+00 −2.0052E−01   1.1280E−02 −5.1463E−01   1.1564E+00 R6−7.8362E−01   2.8919E−01 −8.9534E−01   2.7310E+00 −4.6034E+00 R7  2.8379E−01   5.4251E−01 −2.0390E+00   6.4946E+00 −1.1098E+01 R8  0.0000E+00   2.7836E−01 −2.1513E+00   5.0162E+00 −5.7447E+00 R9  0.0000E+00   2.6558E−01 −1.4142E+00   2.0931E+00 −1.6106E+00 R10  8.6336E−01   2.4187E−01 −2.6274E−01 −2.2151E−01   8.6839E−01 R11  0.0000E+00 −3.3599E−01   6.7429E−02 −3.2811E−01   7.5620E−01 R12−3.4283E+00 −3.1995E−01   1.8250E−01 −6.7206E−02   1.8808E−02 Asphericalsurface coefficients A12 A14 A16 A18 A20 R1   5.2831E−01   2.6641E−01−8.2431E−01   0.0000E+00   0.0000E+00 R2 −9.5189E−03 −3.8213E−04−1.0794E−03   0.0000E+00   0.0000E+00 R3   0.0000E+00   0.0000E+00  0.0000E+00   0.0000E+00   0.0000E+00 R4 −1.2663E+00   0.0000E+00  0.0000E+00   0.0000E+00   0.0000E+00 R5   4.0506E−01 −9.0230E−01  0.0000E+00   0.0000E+00   0.0000E+00 R6   3.3886E+00 −8.4643E−01  0.0000E+00   0.0000E+00   0.0000E+00 R7   9.1197E+00 −2.8121E+00  0.0000E+00   0.0000E+00   0.0000E+00 R8   3.0960E+00 −4.2800E−01−1.1477E−01   0.0000E+00   0.0000E+00 R9   1.4123E+00 −2.0478E+00  1.9291E+00 −8.7162E−01   1.4797E−01 R10 −9.0128E−01   4.8266E−01−1.4441E−01   2.2591E−02 −1.3930E−03 R11 −7.4070E−01   3.9739E−01−1.2208E−01   2.0188E−02 −1.3976E−03 R12 −5.5368E−03   1.6819E−03−3.7038E−04   4.5776E−05 −2.3346E−06

Here, K is a conic coefficient, and A4, A6, A8, A10, A12, A14, A16, A18and A20 are aspheric surface coefficients.

IH: Image Heighty=(x ² /R)/[1+{1−(k+1)(x ² /R ²)}^(1/2)]+A4x ⁴ +A6x ⁶ +A8x ⁸ +A10x ¹⁰+A12x ¹² +A14x ¹⁴ +A16x ¹⁶ +A18x ¹⁸ +A20x ²⁰   (1)

For convenience, an aspheric surface of each lens surface uses theaspheric surfaces shown in the above formula (1). However, the presentdisclosure is not limited to the aspherical polynomials form shown inthe formula (1).

Table 3 and Table 4 show design data of inflexion points and arrestpoints of respective lens in the camera optical lens 10 according toEmbodiment 1 of the present disclosure. P1R1 and P1R2 represent theobject side surface and the image side surface of the first lens L1,P2R1 and P2R2 represent the object side surface and the image sidesurface of the second lens L2, P3R1 and P3R2 represent the object sidesurface and the image side surface of the third lens L3, P4R1 and P4R2represent the object side surface and the image side surface of thefourth lens L4, P5R1 and P5R2 represent the object side surface and theimage side surface of the fifth lens L5, and P6R1 and P6R2 represent theobject side surface and the image side surface of the sixth lens L6. Thedata in the column named “inflexion point position” refers to verticaldistances from inflexion points arranged on each lens surface to theoptic axis of the camera optical lens 10. The data in the column named“arrest point position” refers to vertical distances from arrest pointsarranged on each lens surface to the optic axis of the camera opticallens 10.

TABLE 3 Number of Inflexion Inflexion Inflexion inflexion point pointpoint points position 1 position 2 position 3 P1R1 0 P1R2 0 P2R1 1 0.565P2R2 1 0.275 P3R1 1 0.665 P3R2 1 0.915 P4R1 2 0.885 0.965 P4R2 1 0.835P5R1 1 0.365 P5R2 2 0.895 1.335 P6R1 3 0.255 1.235 1.645 P6R2 2 0.4352.075

TABLE 4 Number of arrest points Arrest point position 1 P1R1 0 P1R2 0P2R1 0 P2R2 1 0.455 P3R1 1 0.825 P3R2 0 P4R1 0 P4R2 1 0.975 P5R1 1 0.535P5R2 0 P6R1 1 0.425 P6R2 1 0.905

FIG. 2 and FIG. 3 illustrate a longitudinal aberration and a lateralcolor of light with wavelengths of 486.1 nm, 587.6 nm and 656.3 nm afterpassing the camera optical lens 10 according to Embodiment 1. FIG. 4illustrates a field curvature and a distortion of light with awavelength of 587.6 nm after passing the camera optical lens 10according to Embodiment 1, in which a field curvature S is a fieldcurvature in a sagittal direction and T is a field curvature in atangential direction.

Table 13 shows various values of Embodiments 1, 2 and 3 and valuescorresponding to parameters which are specified in the above conditions.

As shown in Table 13, Embodiment 1 satisfies the above conditions.

In this embodiment, the entrance pupil diameter of the camera opticallens is 1.490 mm. The image height of 1.0 H is 3.2376 mm. The FOV (fieldof view) is 83.09°. Thus, the camera optical lens has a wide-angle andis ultra-thin. Its on-axis and off-axis chromatic aberrations are fullycorrected, thereby achieving excellent optical characteristics.

Embodiment 2

Embodiment 2 is basically the same as Embodiment 1 and involves symbolshaving the same meanings as Embodiment 1, and only differencestherebetween will be described in the following.

Table 5 and Table 6 show design data of a camera optical lens 20 inEmbodiment 2 of the present disclosure.

TABLE 5 R d nd νd S1 ∞  d0 = −0.050 R1 5.175  d1 = 0.250 nd1 1.5439 ν155.95 R2 8.625  d2 = 0.030 R3 1.592  d3 = 0.444 nd2 1.5439 ν2 55.95 R43.320  d4 = 0.148 R5 −6.578  d5 = 0.518 nd3 1.5439 ν3 55.95 R6 −1.247 d6 = 0.199 R7 −1.070  d7 = 0.417 nd4 1.6713 ν4 19.24 R8 −13.331  d8 =0.060 R9 7.156  d9 = 0.514 nd5 1.6713 ν5 19.24 R10 −2.362 d10 = 0.916R11 −17.603 d11 = 0.300 nd6 1.6397 ν6 23.53 R12 2.206 d12 = 0.067 R13 ∞d13 = 0.110 ndg 1.5168 νg 64.17 R14 ∞ d14 = 0.690

Table 6 shows aspherical surface data of each lens of the camera opticallens 20 in Embodiment 2 of the present disclosure.

TABLE 6 Conic coefficient Aspherical surface coefficients k A4 A6 A8 A10R1   4.0000E+00   1.5636E−02   6.9380E−02 −2.8075E−02 −4.9909E−02 R2  0.0000E+00 −5.6024E−02   3.3920E−01 −1.5549E−01   1.5976E−01 R3  0.0000E+00 −1.5884E−01   1.5368E−01   2.6480E−02 −3.2061E−01 R4  0.0000E+00 −2.4401E−01 −1.3617E−01 −9.4182E−01   1.8886E+00 R5  0.0000E+00 −1.9188E−01   1.0667E−02 −1.0544E+00   2.2262E+00 R6−8.1348E−01   2.0217E−01 −5.5272E−01   1.1747E+00 −1.3018E+00 R7  3.2759E−01   5.8524E−01 −1.1512E+00   1.7529E+00 −1.4301E−01 R8  0.0000E+00   3.6790E−01 −2.1401E+00   4.1227E+00 −4.1439E+00 R9  0.0000E+00   2.4678E−01 −2.0728E+00   5.3280E+00 −1.1281E+01 R10  0.0000E+00   9.9150E−02 −3.0619E−01   4.0033E−01 −5.8771E−01 R11  0.0000E+00 −2.8282E−01   5.3922E−02 −2.7069E−01   6.3950E−01 R12−4.5580E−01 −2.8394E−01   7.0550E−02   2.6421E−02 −3.0037E−02 Asphericalsurface coefficients A12 A14 A16 A18 A20 R1   2.3470E−01   1.5920E−01−4.5507E−01   0.0000E+00   0.0000E+00 R2 −6.1572E−03 −2.2836E−04−5.9592E−04   0.0000E+00   0.0000E+00 R3   0.0000E+00   0.0000E+00  0.0000E+00   0.0000E+00   0.0000E+00 R4 −8.4030E−01   0.0000E+00  0.0000E+00   0.0000E+00   0.0000E+00 R5 −2.5511E−01 −7.3466E−01  0.0000E+00   0.0000E+00   0.0000E+00 R6   5.7429E−01 −2.9226E−02  0.0000E+00   0.0000E+00   0.0000E+00 R7 −3.4869E+00   3.0524E+00  0.0000E+00   0.0000E+00   0.0000E+00 R8   1.9218E+00 −2.3612E−01−4.3424E−02   0.0000E+00   0.0000E+00 R9   1.9116E+01 −2.1885E+01  1.5160E+01 −5.6643E+00   8.6438E−01 R10   7.9896E−01 −5.8314E−01  2.0296E−01 −2.7052E−02   0.0000E+00 R11 −6.5631E−01   3.6878E−01−1.1772E−01   2.0072E−02 −1.4232E−03 R12   1.1307E−02 −2.1956E−03  2.1715E−04 −8.4857E−06   0.0000E+00

Table 7 and Table 8 show design data of inflexion points and arrestpoints of respective lens in the camera optical lens 20 according toEmbodiment 2 of the present disclosure.

TABLE 7 Number of Inflexion Inflexion Inflexion inflexion point pointpoint points position 1 position 2 position 3 P1R1 0 P1R2 0 P2R1 1 0.655P2R2 1 0.295 P3R1 1 0.675 P3R2 0 P4R1 0 P4R2 3 0.165 0.255 1.045 P5R1 10.335 P5R2 2 0.915 1.355 P6R1 2 1.305 1.705 P6R2 2 0.395 2.055

TABLE 8 Number of arrest points Arrest point position 1 P1R1 0 P1R2 0P2R1 0 P2R2 1 0.475 P3R1 1 0.825 P3R2 0 P4R1 0 P4R2 0 P5R1 1 0.495 P5R20 P6R1 0 P6R2 1 0.725

FIG. 6 and FIG. 7 illustrate a longitudinal aberration and a lateralcolor of light with wavelengths of 486.1 nm, 587.6 nm and 656.3 nm afterpassing the camera optical lens 20 according to Embodiment 2. FIG. 8illustrates a field curvature and a distortion of light with awavelength of 587.6 nm after passing the camera optical lens 20according to Embodiment 2.

As shown in Table 13, Embodiment 2 satisfies the above conditions.

In this embodiment, the entrance pupil diameter of the camera opticallens is 1.540 mm. The image height of 1.0 H is 3.2376 mm. The FOV (fieldof view) is 81.23°. Thus, the camera optical lens has a wide-angle andis ultra-thin. Its on-axis and off-axis chromatic aberrations are fullycorrected, thereby achieving excellent optical characteristics.

Embodiment 3

Embodiment 3 is basically the same as Embodiment 1 and involves symbolshaving the same meanings as Embodiment 1, and only differencestherebetween will be described in the following.

Table 9 and Table 10 show design data of a camera optical lens 30 inEmbodiment 3 of the present disclosure.

TABLE 9 R d nd vd S1 ∞  d0 = −0.089 R1 2.001  d1 = 0.273 nd1 1.5439 ν155.95 R2 2.670  d2 = 0.032 R3 1.948  d3 = 0.423 nd2 1.5439 ν2 55.95 R411.457  d4 = 0.149 R5 −3.238  d5 = 0.387 nd3 1.5439 ν3 55.95 R6 −1.228 d6 = 0.169 R7 −1.118  d7 = 0.319 nd4 1.6713 ν4 19.24 R8 −5.849  d8 =0.134 R9 66.181  d9 = 0.657 nd5 1.6713 ν5 19.24 R10 −1.961 d10 = 0.719R11 5.608 d11 = 0.197 nd6 1.6397 ν6 23.53 R12 1.267 d12 = 0.136 R13 ∞d13 = 0.110 ndg 1.5168 νg 64.17 R14 ∞ d14 = 0.690

Table 10 shows aspherical surface data of each lens of the cameraoptical lens 30 in Embodiment 3 of the present disclosure.

TABLE 10 Conic coefficient Aspherical surface coefficients k A4 A6 A8A10 R1   2.1935E+00 −1.0726E−01   6.2172E−02 −3.4691E−01   1.7231E−01 R2  0.0000E+00 −2.5083E−01   9.4399E−02 −9.7762E−02   3.3369E−01 R3  0.0000E+00 −2.1848E−01   2.0010E−02 −4.7454E−03   9.8414E−02 R4  0.0000E+00 −1.8183E−01 −6.4923E−02 −1.0962E+00   2.0781E+00 R5  0.0000E+00 −2.0714E−01   9.6021E−02 −6.4775E−01   1.2223E+00 R6−7.9797E−01   1.3477E−01 −2.4245E−01   1.1710E+00 −2.1788E+00 R7  2.8530E−01   4.4388E−01 −1.5318E+00   5.4823E+00 −1.0280E+01 R8  0.0000E+00   3.0288E−01 −2.1625E+00   5.0696E+00 −6.4606E+00 R9  0.0000E+00   2.6739E−01 −1.1545E+00   2.5863E−01   5.1331E+00 R10  5.3884E−01   2.1117E−01 −1.7857E−01 −3.6742E−01   1.0803E+00 R11  0.0000E+00 −4.0661E−01   9.0177E−02   1.2368E−01 −3.3276E−01 R12−3.5726E+00 −4.0698E−01   3.5002E−01 −2.5246E−01   1.3516E−01 Asphericalsurface coefficients A12 A14 A16 A18 A20 R1   2.7118E−01   2.0594E−01−6.1247E−01   0.0000E+00   0.0000E+00 R2 −7.6586E−03 −2.9540E−04−8.0204E−04   0.0000E+00   0.0000E+00 R3   0.0000E+00   0.0000E+00  0.0000E+00   0.0000E+00   0.0000E+00 R4 −1.0437E+00   0.0000E+00  0.0000E+00   0.0000E+00   0.0000E+00 R5   1.5435E−01 −8.7055E−01  0.0000E+00   0.0000E+00   0.0000E+00 R6   1.6307E+00 −5.5870E−01  0.0000E+00   0.0000E+00   0.0000E+00 R7   9.0459E+00 −2.9104E+00  0.0000E+00   0.0000E+00   0.0000E+00 R8   4.5138E+00 −1.5402E+00  1.9024E−01   0.0000E+00   0.0000E+00 R9 −1.4441E+01   2.0676E+01−1.7177E+01   7.8181E+00 −1.5105E+00 R10 −1.3308E+00   9.9564E−01−4.5566E−01   1.1555E−01 −1.2333E−02 R11   3.8625E−01 −2.3327E−01  7.6141E−02 −1.2702E−02   8.4410E−04 R12 −4.9403E−02   1.1829E−02−1.7697E−03   1.4881E−04 −5.2597E−06

Table 11 and table 12 show design data of inflexion points and arrestpoints of respective lens in the camera optical lens 30 according toEmbodiment 3 of the present disclosure.

TABLE 11 Number of Inflexion Inflexion Inflexion inflexion point pointpoint points position 1 position 2 position 3 P1R1 1 0.705 P1R2 2 0.3850.625 P2R1 2 0.495 0.715 P2R2 1 0.195 P3R1 0 P3R2 0 P4R1 0 P4R2 1 0.915P5R1 1 0.345 P5R2 2 1.105 1.265 P6R1 3 0.195 1.405 1.685 P6R2 2 0.4052.025

TABLE 12 Number of arrest points Arrest point position 1 P1R1 0 P1R2 0P2R1 0 P2R2 1 0.325 P3R1 0 P3R2 0 P4R1 0 P4R2 1 1.095 P5R1 1 0.465 P5R20 P6R1 1 0.335 P6R2 1 0.815

FIG. 10 and FIG. 11 illustrate a longitudinal aberration and a lateralcolor of light with wavelengths of 486.1 nm, 587.6 nm and 656.3 nm afterpassing the camera optical lens 30 according to Embodiment 3. FIG. 12illustrates field curvature and distortion of light with a wavelength of587.6 nm after passing the camera optical lens 30 according toEmbodiment 3.

Table 13 in the following lists values corresponding to the respectiveconditions in this embodiment in order to satisfy the above conditions.The camera optical lens according to this embodiment satisfies the aboveconditions.

In this embodiment, the entrance pupil diameter of the camera opticallens is 1.477 mm. The image height of 1.0 H is 3.2376 mm. The FOV (fieldof view) is 83.63°. Thus, the camera optical lens has a wide-angle andis ultra-thin. Its on-axis and off-axis chromatic aberrations are fullycorrected, thereby achieving excellent optical characteristics.

TABLE 13 Parameters Embodiment Embodiment Embodiment and conditions 1 23 f 3.575 3.697 3.544 f1 35.517 23.195 12.833 f2 5.94 5.154 4.249 f32.558 2.736 3.404 f4 −2.223 −1.757 −2.116 f5 2.861 2.704 2.848 f6 −2.842−3.046 −2.606 f12 5.074 4.244 3.307 FNO 2.40 2.40 2.40 f1/f2 5.98 4.503.02 (R1 + R2)/(R1 − R2) −1.02 −0.77 −6.98

It can be appreciated by one having ordinary skill in the art that thedescription above is only embodiments of the present disclosure. Inpractice, one having ordinary skill in the art can make variousmodifications to these embodiments in forms and details withoutdeparting from the spirit and scope of the present disclosure.

What is claimed is:
 1. A camera optical lens, comprising, from an objectside to an image side: a first lens having a positive refractive power;a second lens having a positive refractive power; a third lens having apositive refractive power; a fourth lens having a negative refractivepower and comprising an object side surface being concave in a paraxialregion and an image side surface being convex in the paraxial region; afifth lens having a positive refractive power; and a sixth lens having anegative refractive power, wherein the camera optical lens satisfiesfollowing conditions: 3.00≤f1/f2≤6.00; −7.00≤(R1+R2)/(R1−R2)≤−1.00;−1.24≤f4/f≤−0.32; −2.95≤(R7+R8)/(R7−R8)≤−0.78; and 0.03≤d7/TTL≤0.13,where f1 denotes a focal length of the first lens; f2 denotes a focallength of the second lens; R1 denotes a curvature radius of an objectside surface of the first lens; R2 denotes a curvature radius of animage side surface of the first lens; f denotes a focal length of thecamera optical lens; f4 denotes a focal length of the fourth lens; R7denotes a curvature radius of the object side surface of the fourthlens; R8 denotes a curvature radius of the image side surface of thefourth lens; d7 denotes an on-axis thickness of the fourth lens; and TTLdenotes a total optical length from an object side surface of the firstlens to an image plane of the camera optical lens along an optic axis.2. The camera optical lens as described in claim 1, wherein the objectside surface of the first lens is convex in a paraxial region, and theimage side surface of the first lens is concave in the paraxial region,and the camera optical lens further satisfies following conditions:1.81≤f1/f≤14.90; and 0.03≤d1/TTL≤0.09, where f denotes a focal length ofthe camera optical lens; d1 denotes an on-axis thickness of the firstlens; and TTL denotes a total optical length from the object sidesurface of the first lens to an image plane of the camera optical lensalong an optic axis.
 3. The camera optical lens as described in claim 2,further satisfying following conditions: 2.90≤f1/f≤11.92; and0.04≤d1/TTL≤0.07.
 4. The camera optical lens as described in claim 1,wherein the second lens comprises an object side surface being convex ina paraxial region and an image side surface being concave in theparaxial region, and the camera optical lens further satisfies followingconditions: 0.60≤f2/f≤2.49; −7.26≤(R3+R4)/(R3−R4)≤−0.94; and0.04≤d3/TTL≤0.14, where f denotes a focal length of the camera opticallens; R3 denotes a curvature radius of the object side surface of thesecond lens; R4 denotes a curvature radius of the image side surface ofthe second lens; d3 denotes an on-axis thickness of the second lens; andTTL denotes a total optical length from an object side surface of thefirst lens to an image plane of the camera optical lens along an opticaxis.
 5. The camera optical lens as described in claim 4, furthersatisfying following conditions: 0.96≤f2/f≤1.99;−4.53≤(R3+R4)/(R3−R4)≤−1.17; and 0.07≤d3/TTL≤0.12.
 6. The camera opticallens as described in claim 1, wherein the third lens comprises an objectside surface being concave in a paraxial region and an image sidesurface being convex in the paraxial region, and the camera optical lensfurther satisfies following conditions: 0.36≤f3/f≤1.44;0.65≤(R5+R6)/(R5−R6)≤3.33; and 0.04≤d5/TTL≤0.21, where f denotes a focallength of the camera optical lens; f3 denotes a focal length of thethird lens; R5 denotes a curvature radius of the object side surface ofthe third lens; R6 denotes a curvature radius of the image side surfaceof the third lens; d5 denotes an on-axis thickness of the third lens;and TTL denotes a total optical length from an object side surface ofthe first lens to an image plane of the camera optical lens along anoptic axis.
 7. The camera optical lens as described in claim 6, furthersatisfying following conditions: 0.57≤f3/f≤1.15;1.04≤(R5+R6)/(R5−R6)≤2.67; and 0.07≤d5/TTL≤0.17.
 8. The camera opticallens as described in claim 1, further satisfying the conditions:−0.78≤f4/f≤−0.40; −1.84≤(R7+R8)/(R7−R8)≤−0.98; and 0.05≤d7/TTL≤0.11. 9.The camera optical lens as described in claim 1, wherein the fifth lenscomprises an object side surface being convex in a paraxial region andan image side surface being convex in the paraxial region, and thecamera optical lens further satisfies following conditions:0.37≤f5/f≤1.21; 0.25≤(R9+R10)/(R9−R10)≤1.41; and 0.06≤d9/TTL≤0.22, wheref denotes a focal length of the camera optical lens; f5 denotes a focallength of the fifth lens; R9 denotes a curvature radius of the objectside surface of the fifth lens; R10 denotes a curvature radius of theimage side surface of the fifth lens; d9 denotes an on-axis thickness ofthe fifth lens; and TTL denotes a total optical length from an objectside surface of the first lens to an image plane of the camera opticallens along an optic axis.
 10. The camera optical lens as described inclaim 9, further satisfying following conditions: 0.59≤f5/f≤0.96;0.40≤(R9+R10)/(R9−R10)≤1.13; and 0.09≤d9/TTL≤0.18.
 11. The cameraoptical lens as described in claim 1, wherein the sixth lens comprisesan image side surface being concave in a paraxial region, and the cameraoptical lens further satisfies following conditions: −1.65≤f6/f≤−0.49;0.39≤(R11+R12)/(R11−R12)≤2.70; and 0.02≤d11/TTL≤0.10, where f denotes afocal length of the camera optical lens; f6 denotes a focal length ofthe sixth lens; R11 denotes a curvature radius of an object side surfaceof the sixth lens; R12 denotes a curvature radius of the image sidesurface of the sixth lens; d11 denotes an on-axis thickness of the sixthlens; and TTL denotes a total optical length from an object side surfaceof the first lens to an image plane of the camera optical lens along anoptic axis.
 12. The camera optical lens as described in claim 11,further satisfying following conditions: −1.03≤f6/f≤−0.61;0.62≤(R11+R12)/(R11−R12)≤2.16; and 0.04≤d11/TTL≤0.08.
 13. The cameraoptical lens as described in claim 1, further satisfying a followingcondition: 0.47≤f12/f≤2.13, where f denotes a focal length of the cameraoptical lens; and f12 denotes a combined focal length of the first lensand the second lens.
 14. The camera optical lens as described in claim13, further satisfying a following condition: 0.75≤f12/f≤1.70.
 15. Thecamera optical lens as described in claim 1, wherein a total opticallength TTL from an object side surface of the first lens to an imageplane of the camera optical lens along an optic axis is smaller than orequal to 5.21 mm.
 16. The camera optical lens as described in claim 15,wherein the total optical length TTL of the camera optical lens issmaller than or equal to 4.97 mm.
 17. The camera optical lens asdescribed in claim 1, wherein an F number of the camera optical lens issmaller than or equal to 2.47.
 18. The camera optical lens as describedin claim 17, wherein the F number of the camera optical lens is smallerthan or equal to 2.42.